Shock-absorber.



E. o. WILGOX E c. GUN0.`

SHOCK ABSORBBR.

APPLICATION FILED JA'N. 13, 1910. 982,914. Patented Ja11.31, 1911.

2 SHEETS-SHEET 1.

j' ja] E@ SMQ/|4160@ CHAMEsm/Q E. C. WILGX CJNJNOn SHOCK ABSGRBBB.

l 'APPLIOATIGN FILED JAHN, 1910. Y 982,914, v Pateutd Jan. 31, 1911.7v

y 2 SHEETS-SHEET 2.-

ERNEST C. WILCOX AND CHARLES CUNO, F MERIDEN, CONNECTICUT.

SHOCK-ABSORBER.

Specification of Letters Patent..

Patented Jan. 31, 1911.

Application filed Januaryy 13, 1910. Serial No. 5373837.l

' To all whom `tt may concern.:

Be it known that-we, ERNEST C. llViLooxy and Ci-iAnLEs CUNo, citizens of the United States, residing at Meriden, county of New Haven, State of Connecticut, have invented certain new and useful Improvements in Shock-Absorbers, of which the following is a full., clear, and exact description. i

Our invention relates to improvements in shock absorbers'.

The iin roveinents herein claimed relate particulary to adjustment features whereby the apparatus may be adjusted to vehicles 4 having different clearance between the two 'parts to which the shock absorber is connected, said adjustment feature also being capable of ie-adjustment in the event of the sagging' of the vehicle spri11gs.

In the accompanying drawings, Figure 1 is a side elevation of our invention assembled --in normal position for one adjustment.

. Fig., 2 is a. plan view thereof. Fig. 3 is a detail view of the interior of the case and showingthe various parts therein in one position. Fig. Llis a. similarview showing said parts in another position. Fig. is a section on the line X-Xn Fig. 1. Fig. G.

" is a View similar to Fig. 1 with certain parts removed. Figs. 7 to 11 inclusivel are detail views.

1-2 are lever elements or arms designed' to be connectedto the vehicle in any suitable manner. In theA particular form shown,

' A. the arm 1 would be connected to the body of the vehicle, while the arm 2 would be.con nected to the axle, which parts V(the body and axle) lare connected by suitable load bearing springs. Thearms 1-.-2 partake of ahinge movement on the axis of center bolt 3. A'The arm@ is providedl with a circular hollowed-out extension, which, in the pres#l ent instance, constitutes the cap 4 of a circular box or ease.' The body of this box or case isindicated at 5, and provides within it a space for the shock absorbing and recoil arresting elements. G is a cam concentric to the axis of the bolt 3 and .located Within the case and having suitable bearings in said cap 4 and case 5.

7-7-7 are springs held Within the case and bearing uponl they cam.' In this particular instance, three springs are employed, and the cam is provided with a corresponding number of high points, asshown, the high points'of the cam 6 belng normally located approximately midway' between two -adjano work. When, however, a bad piece of l road isencountred and thevehicle isrseverely jolted, the abnormal action of .the vehicle springs, under such conditions, is supplemented by the action of the springs 7 7 which operate in a direction ltoarrestsevere jolts and abnormal recoil. In-Fig 4, We have shown the position of the :cam -G as turned to such a degree as to flex the springs 7, asv would occur when said shock absorber issupplementing the action ofthe vehicle springs.,

The adjustable featl'lre for this type of absorber (one having a neutral point) is preferably' effected at the junction of the lever 1 with cam'. The lever element 1 is preferably made of two parts, which stx-atb dle the cas-e and cap (see Fig. 2'). ,()nc effective and simple' means fol; securing this adjustment is illustrated and. comprises a locking means lwhereby said arm 1- may be connected to the can'rat various angles of .adjustment relatively tothe neutral position-ot' the cam. To accomplish this result, the hub extension G? of the cam G isangular or hexagonal. Fitting over this is a ring'- like member 8 havin rser'rations or irregularities at its outer e ge, provided'in a suit.-

able number to afford the desired de ree of adjustment, which, in orderto-be e `etive,

must be such as to permit the arms land 2 to be shifted relatively ,to each other a few. degrees. This is due 'to the fact that the length of the arms is such that ya very few degrees difference in adjustment will shift the ends of.the arms 1-'-2 to avery material extent. 4One of the arms, in this'instanc'e arm 1, is provided with an opening arranged to snugly tit the serrated outer edge of 4the ring 8 (see Figs. 7 and 8). The thickness of the ring 8 corresponds substantially to the thickness of the metal of the arm 1:

QMS) arc'washers arranged lto `stand on opthe parts are assembled, serving to revent lateral dislodgment ofsaid parts. W en the parts are in operation, angular displacement -posite sdesof the ring 8 and arm 1 'when g not bind frictionally upon the case 4 to such being prevented by the interlocking vserrations or irregularities between the parts thus far described. To finally connect the parts, a nut 3 is screwed on to the center bolt'B,

vclamping all parts securely in position. Asl shown, the angular part of the hub (5a is somewhat reduced so. as to provide a` shoulder against Which the inside Washer 9 WillV abut, whereby, when the bolt 3 and nut 8a are tightened up. said .inside Washer will a degree as to influence the action ofl the lever-1. c This shoulder shown in Fig. 9 we will refer to herein asa stop shoulder. lt is obvious that it would be preferable, and indeed, .it is our intention in said preferable Yform of the construction to provide an interlocking means such, for example, .as the ring 8 between both members of the lever element or arm l Where said members engage Vthe opposite ends or hub portion of the cam 6.

' upon the direction of movement of the for- What We claim is: l

1.. In a shock absorber, resistance mechanism including a spring, an oscillating device operating against .said spring with increasing a'nd `diminishing' force depending mer relatively to the latter, aA lever arm con- 'v nected to the spring, another lever arm con- .vne'cted to said oscillating member,4 an adjustable connection betiveen one of said arms and its respective part. whereby said part may be angularly adjusted relatively therefito said connection including an angular hub,

' like member fitted thereon and angularly- "adjustable thereon, the external periphery ljlstopjshoulder thereon, an annular plateof said plate being serrated, a passage through said lever arm corresponding to and arranged to fit upon the serrated outer' edge of said plate,'said plate and the -lever arm same thickness, a covering Washer' adapted to 'fit upon said Aangulaihub and overstanding I the line of connection between'said plate an lever arm, a bolt passing through .said oscillating member, and a nut adaptedl to said bolt and arranged to hold all of said parts in lassembled position. y l I 2. In a shock abs'tn'be-r, resistance mecha. nisip including a spring, an oscillating device operating against said spring With increasingv and diminishing force. depending upon the direction of movement-'of the ,former rel ativel-y'to the latter, a lever arm connected to the spring, anotherv lever arm connected to said oscillating member, an adjustbeing of substantially the same thickness, a `covering washer adapted to tit upon said angular hub and overstanding the line of mounted thereon being of substantially the i connection between said plate and lever arm,

and another 'Washer between said lever arm and said stop shoulder, a.` bolt' passingv 'i through said oscillating member, and a nut adapted to said bolt and' arranged to hold` vall ofsaid parts in. assembled position.

'ERNEST C. W ILCOX.4 CHARLES CUNO. lVitn'esses:

L. T. FULLER, 4V. M. KOOREMAN.' 

